Boy, am I torqued!

I bought something from an eBay store the other day, and agreed to pay $53.99. Now, it seems that the seller wants to change the price AFTER the auction is over! When I try to "pay now" with Paypal, the system pre-populates a price of $93.01 -- $40 more than the price I agreed to pay.

Now, when you commit to buy an item, does that not create a legal agreement with the seller? General contract law states that in order for a contract to exist, you must have offer, acceptance and consideration. In legal cases involving eBay, I honestly don't know what constitutes as consideration. Is negative feedback sufficient for establishing consideration? As for offer and acceptance, it should be clear that both exist.

What says the rabble?

This is what I have in my email box and My eBay page.



This is the garbage I get when I try to pay. Apologize my ***! How can this even be legal???